i965: use uncompressed instruction to ensure only

Pixel Mask Copy is modified as the pixel shader thread
turns off pixels based on kill instructions.

diff --git a/src/mesa/drivers/dri/i965/brw_wm_emit.c b/src/mesa/drivers/dri/i965/brw_wm_emit.c
index 1f7158f..6bafa44 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_wm_emit.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_emit.c
@@ -810,6 +810,7 @@ static void emit_kil( struct brw_wm_compile *c,
       brw_push_insn_state(p);
       brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_GE, arg0[i], brw_imm_f(0));   
       brw_set_predicate_control_flag_value(p, 0xff);
+      brw_set_compression_control(p, BRW_COMPRESSION_NONE);
       brw_AND(p, r0uw, brw_flag_reg(), r0uw);
       brw_pop_insn_state(p);
    }